大跨度钢管混凝土拱桥拱肋吊装过程仿真分析

Imitative Analysis in Hoisting Course of Arch Ribs of Large-Span Steel Pipe Concrete Arch Bridge

大跨度钢管混凝土拱桥的拱肋吊装是一个复杂的过程 ,为了保证最终的成桥线形和受力状态满足设计要求 ,需要采用施工控制仿真计算。本文给出了仿真计算的具体步骤 ,提出了基于迭代理论的前进分析方法 。

The rib hoisting of large-span steel pipe concrete arch bridge is a complex course. In order to ensure that the final bridge line and the forced status meet the design requirement, it needs to adopt the calculation of the construction control imitation. The paper gives the actual steps of imitative calculation and puts forward the advancing analysis method based on iterative theory and verifies the feasibility of this method through the example.